7915938 has 8 divisors (see below), whose sum is σ = 15831888. Its totient is φ = 2638644.

The previous prime is 7915903. The next prime is 7915969. The reversal of 7915938 is 8395197.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

7915938 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7915938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659656 + ... + 659667.

It is an arithmetic number, because the mean of its divisors is an integer number (1978986).

Almost surely, 2^7915938 is an apocalyptic number.

7915938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7915938 is a wasteful number, since it uses less digits than its factorization.

7915938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319328.

The product of its digits is 68040, while the sum is 42.

The square root of 7915938 is about 2813.5276789113. The cubic root of 7915938 is about 199.2970152909.

It can be divided in two parts, 79159 and 38, that added together give a palindrome (79197).

The spelling of 7915938 in words is "seven million, nine hundred fifteen thousand, nine hundred thirty-eight".